Adding LoongArch local interrupt function set, which is used to control the opening or closing of the local interrupt when the global interrupt is enabled.
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584 Cc: Michael D Kinney <michael.d.kin...@intel.com> Cc: Liming Gao <gaolim...@byosoft.com.cn> Cc: Zhiguang Liu <zhiguang....@intel.com> Signed-off-by: Chao Li <lic...@loongson.cn> Acked-by: Michael D Kinney <michael.d.kin...@intel.com> Reviewed-by: Liming Gao <gaolim...@byosoft.com.cn> --- MdePkg/Include/Library/BaseLib.h | 20 +++++++++++++++++ .../BaseLib/LoongArch64/DisableInterrupts.S | 22 ++++++++++++++----- .../BaseLib/LoongArch64/EnableInterrupts.S | 22 ++++++++++++++----- 3 files changed, 54 insertions(+), 10 deletions(-) diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/BaseLib.h index 7117c4288f..91322d2dfa 100644 --- a/MdePkg/Include/Library/BaseLib.h +++ b/MdePkg/Include/Library/BaseLib.h @@ -307,6 +307,26 @@ SetTlbRebaseAddress ( IN UINT64 ); +/** + Enables local CPU interrupts. + + @param Needs to enable local interrupt bit. +**/ +VOID +EnableLocalInterrupts ( + IN UINT16 + ); + +/** + Disables local CPU interrupts. + + @param Needs to disable local interrupt bit. +**/ +VOID +DisableLocalInterrupts ( + IN UINT16 + ); + #endif // defined (MDE_CPU_LOONGARCH64) // diff --git a/MdePkg/Library/BaseLib/LoongArch64/DisableInterrupts.S b/MdePkg/Library/BaseLib/LoongArch64/DisableInterrupts.S index 0f228339af..8f9ee888b1 100644 --- a/MdePkg/Library/BaseLib/LoongArch64/DisableInterrupts.S +++ b/MdePkg/Library/BaseLib/LoongArch64/DisableInterrupts.S @@ -1,21 +1,33 @@ #------------------------------------------------------------------------------ # -# LoongArch interrupt disable +# LoongArch interrupt disable operations # -# Copyright (c) 2022, Loongson Technology Corporation Limited. All rights reserved.<BR> +# Copyright (c) 2024, Loongson Technology Corporation Limited. All rights reserved.<BR> # # SPDX-License-Identifier: BSD-2-Clause-Patent # #------------------------------------------------------------------------------ +#include <Base.h> +#include <Register/LoongArch64/Csr.h> + +ASM_GLOBAL ASM_PFX(DisableLocalInterrupts) ASM_GLOBAL ASM_PFX(DisableInterrupts) #/** -# Disables CPU interrupts. +# Disables local CPU interrupts. +# +# @param Needs to disable local interrupt bit. #**/ +ASM_PFX(DisableLocalInterrupts): + csrxchg $zero, $a0, LOONGARCH_CSR_ECFG + jirl $zero, $ra, 0 +#/** +# Disables global CPU interrupts. +#**/ ASM_PFX(DisableInterrupts): - li.w $t0, 0x4 - csrxchg $zero, $t0, 0x0 + li.w $t0, BIT2 + csrxchg $zero, $t0, LOONGARCH_CSR_CRMD jirl $zero, $ra, 0 .end diff --git a/MdePkg/Library/BaseLib/LoongArch64/EnableInterrupts.S b/MdePkg/Library/BaseLib/LoongArch64/EnableInterrupts.S index 3c34fb2cdd..126c7b49b3 100644 --- a/MdePkg/Library/BaseLib/LoongArch64/EnableInterrupts.S +++ b/MdePkg/Library/BaseLib/LoongArch64/EnableInterrupts.S @@ -1,21 +1,33 @@ #------------------------------------------------------------------------------ # -# LoongArch interrupt enable +# LoongArch interrupt enable operations # -# Copyright (c) 2022, Loongson Technology Corporation Limited. All rights reserved.<BR> +# Copyright (c) 2024, Loongson Technology Corporation Limited. All rights reserved.<BR> # # SPDX-License-Identifier: BSD-2-Clause-Patent # #------------------------------------------------------------------------------ +#include <Base.h> +#include <Register/LoongArch64/Csr.h> + +ASM_GLOBAL ASM_PFX(EnableLocalInterrupts) ASM_GLOBAL ASM_PFX(EnableInterrupts) #/** -# Enables CPU interrupts. +# Enables local CPU interrupts. +# +# @param Needs to enable local interrupt bit. #**/ +ASM_PFX(EnableLocalInterrupts): + csrxchg $a0, $a0, LOONGARCH_CSR_ECFG + jirl $zero, $ra, 0 +#/** +# Enables global CPU interrupts. +#**/ ASM_PFX(EnableInterrupts): - li.w $t0, 0x4 - csrxchg $t0, $t0, 0x0 + li.w $t0, BIT2 + csrxchg $t0, $t0, LOONGARCH_CSR_CRMD jirl $zero, $ra, 0 .end -- 2.27.0 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#114530): https://edk2.groups.io/g/devel/message/114530 Mute This Topic: https://groups.io/mt/103971639/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
